/**
  ******************************************************************************
  * @file    stm32f4xx_dac.h
  * @author  MCD Application Team
  * @version V1.4.0
  * @date    04-August-2014
  * @brief   This file contains all the functions prototypes for the DAC firmware 
  *          library.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2014 STMicroelectronics</center></h2>
  *
  * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/software_license_agreement_liberty_v2
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __STM32F4xx_DAC_H
#define __STM32F4xx_DAC_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"

/** @addtogroup STM32F4xx_StdPeriph_Driver
  * @{
  */

/** @addtogroup DAC
  * @{
  */

/* Exported types ------------------------------------------------------------*/

/** 
  * @brief  DAC Init structure definition
  */

typedef struct
{
    uint32_t DAC_Trigger;                      /*!< Specifies the external trigger for the selected DAC channel.
                                                  This parameter can be a value of @ref DAC_trigger_selection */

    uint32_t DAC_WaveGeneration;               /*!< Specifies whether DAC channel noise waves or triangle waves
                                                  are generated, or whether no wave is generated.
                                                  This parameter can be a value of @ref DAC_wave_generation */

    uint32_t DAC_LFSRUnmask_TriangleAmplitude; /*!< Specifies the LFSR mask for noise wave generation or
                                                  the maximum amplitude triangle generation for the DAC channel. 
                                                  This parameter can be a value of @ref DAC_lfsrunmask_triangleamplitude */

    uint32_t DAC_OutputBuffer;                 /*!< Specifies whether the DAC channel output buffer is enabled or disabled.
                                                  This parameter can be a value of @ref DAC_output_buffer */
} DAC_InitTypeDef;

/* Exported constants --------------------------------------------------------*/

/** @defgroup DAC_Exported_Constants
  * @{
  */

/** @defgroup DAC_trigger_selection 
  * @{
  */

#define DAC_Trigger_None    ((uint32_t)0x00000000)  /*!< Conversion is automatic once the DAC1_DHRxxxx register 
                                                                       has been loaded, and not by external trigger */
#define DAC_Trigger_T2_TRGO ((uint32_t)0x00000024)  /*!< TIM2 TRGO selected as external conversion trigger for DAC channel */
#define DAC_Trigger_T4_TRGO ((uint32_t)0x0000002C)  /*!< TIM4 TRGO selected as external conversion trigger for DAC channel */
#define DAC_Trigger_T5_TRGO ((uint32_t)0x0000001C)  /*!< TIM5 TRGO selected as external conversion trigger for DAC channel */
#define DAC_Trigger_T6_TRGO ((uint32_t)0x00000004)  /*!< TIM6 TRGO selected as external conversion trigger for DAC channel */
#define DAC_Trigger_T7_TRGO ((uint32_t)0x00000014)  /*!< TIM7 TRGO selected as external conversion trigger for DAC channel */
#define DAC_Trigger_T8_TRGO ((uint32_t)0x0000000C)  /*!< TIM8 TRGO selected as external conversion trigger for DAC channel */

#define DAC_Trigger_Ext_IT9  ((uint32_t)0x00000034) /*!< EXTI Line9 event selected as external conversion trigger for DAC channel */
#define DAC_Trigger_Software ((uint32_t)0x0000003C) /*!< Conversion started by software trigger for DAC channel */

#define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_Trigger_None) || ((TRIGGER) == DAC_Trigger_T6_TRGO) || ((TRIGGER) == DAC_Trigger_T8_TRGO) || ((TRIGGER) == DAC_Trigger_T7_TRGO) || ((TRIGGER) == DAC_Trigger_T5_TRGO) || ((TRIGGER) == DAC_Trigger_T2_TRGO) || ((TRIGGER) == DAC_Trigger_T4_TRGO) || ((TRIGGER) == DAC_Trigger_Ext_IT9) || ((TRIGGER) == DAC_Trigger_Software))

/**
  * @}
  */

/** @defgroup DAC_wave_generation 
  * @{
  */

#define DAC_WaveGeneration_None     ((uint32_t)0x00000000)
#define DAC_WaveGeneration_Noise    ((uint32_t)0x00000040)
#define DAC_WaveGeneration_Triangle ((uint32_t)0x00000080)
#define IS_DAC_GENERATE_WAVE(WAVE)  (((WAVE) == DAC_WaveGeneration_None) || ((WAVE) == DAC_WaveGeneration_Noise) || ((WAVE) == DAC_WaveGeneration_Triangle))
/**
  * @}
  */

/** @defgroup DAC_lfsrunmask_triangleamplitude
  * @{
  */

#define DAC_LFSRUnmask_Bit0        ((uint32_t)0x00000000) /*!< Unmask DAC channel LFSR bit0 for noise wave generation */
#define DAC_LFSRUnmask_Bits1_0     ((uint32_t)0x00000100) /*!< Unmask DAC channel LFSR bit[1:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits2_0     ((uint32_t)0x00000200) /*!< Unmask DAC channel LFSR bit[2:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits3_0     ((uint32_t)0x00000300) /*!< Unmask DAC channel LFSR bit[3:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits4_0     ((uint32_t)0x00000400) /*!< Unmask DAC channel LFSR bit[4:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits5_0     ((uint32_t)0x00000500) /*!< Unmask DAC channel LFSR bit[5:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits6_0     ((uint32_t)0x00000600) /*!< Unmask DAC channel LFSR bit[6:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits7_0     ((uint32_t)0x00000700) /*!< Unmask DAC channel LFSR bit[7:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits8_0     ((uint32_t)0x00000800) /*!< Unmask DAC channel LFSR bit[8:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits9_0     ((uint32_t)0x00000900) /*!< Unmask DAC channel LFSR bit[9:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits10_0    ((uint32_t)0x00000A00) /*!< Unmask DAC channel LFSR bit[10:0] for noise wave generation */
#define DAC_LFSRUnmask_Bits11_0    ((uint32_t)0x00000B00) /*!< Unmask DAC channel LFSR bit[11:0] for noise wave generation */
#define DAC_TriangleAmplitude_1    ((uint32_t)0x00000000) /*!< Select max triangle amplitude of 1 */
#define DAC_TriangleAmplitude_3    ((uint32_t)0x00000100) /*!< Select max triangle amplitude of 3 */
#define DAC_TriangleAmplitude_7    ((uint32_t)0x00000200) /*!< Select max triangle amplitude of 7 */
#define DAC_TriangleAmplitude_15   ((uint32_t)0x00000300) /*!< Select max triangle amplitude of 15 */
#define DAC_TriangleAmplitude_31   ((uint32_t)0x00000400) /*!< Select max triangle amplitude of 31 */
#define DAC_TriangleAmplitude_63   ((uint32_t)0x00000500) /*!< Select max triangle amplitude of 63 */
#define DAC_TriangleAmplitude_127  ((uint32_t)0x00000600) /*!< Select max triangle amplitude of 127 */
#define DAC_TriangleAmplitude_255  ((uint32_t)0x00000700) /*!< Select max triangle amplitude of 255 */
#define DAC_TriangleAmplitude_511  ((uint32_t)0x00000800) /*!< Select max triangle amplitude of 511 */
#define DAC_TriangleAmplitude_1023 ((uint32_t)0x00000900) /*!< Select max triangle amplitude of 1023 */
#define DAC_TriangleAmplitude_2047 ((uint32_t)0x00000A00) /*!< Select max triangle amplitude of 2047 */
#define DAC_TriangleAmplitude_4095 ((uint32_t)0x00000B00) /*!< Select max triangle amplitude of 4095 */

#define IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(VALUE) (((VALUE) == DAC_LFSRUnmask_Bit0) || ((VALUE) == DAC_LFSRUnmask_Bits1_0) || ((VALUE) == DAC_LFSRUnmask_Bits2_0) || ((VALUE) == DAC_LFSRUnmask_Bits3_0) || ((VALUE) == DAC_LFSRUnmask_Bits4_0) || ((VALUE) == DAC_LFSRUnmask_Bits5_0) || ((VALUE) == DAC_LFSRUnmask_Bits6_0) || ((VALUE) == DAC_LFSRUnmask_Bits7_0) || ((VALUE) == DAC_LFSRUnmask_Bits8_0) || ((VALUE) == DAC_LFSRUnmask_Bits9_0) || ((VALUE) == DAC_LFSRUnmask_Bits10_0) || ((VALUE) == DAC_LFSRUnmask_Bits11_0) || ((VALUE) == DAC_TriangleAmplitude_1) || ((VALUE) == DAC_TriangleAmplitude_3) || ((VALUE) == DAC_TriangleAmplitude_7) || ((VALUE) == DAC_TriangleAmplitude_15) || ((VALUE) == DAC_TriangleAmplitude_31) || ((VALUE) == DAC_TriangleAmplitude_63) || ((VALUE) == DAC_TriangleAmplitude_127) || ((VALUE) == DAC_TriangleAmplitude_255) || ((VALUE) == DAC_TriangleAmplitude_511) || ((VALUE) == DAC_TriangleAmplitude_1023) || ((VALUE) == DAC_TriangleAmplitude_2047) || ((VALUE) == DAC_TriangleAmplitude_4095))
/**
  * @}
  */

/** @defgroup DAC_output_buffer 
  * @{
  */

#define DAC_OutputBuffer_Enable           ((uint32_t)0x00000000)
#define DAC_OutputBuffer_Disable          ((uint32_t)0x00000002)
#define IS_DAC_OUTPUT_BUFFER_STATE(STATE) (((STATE) == DAC_OutputBuffer_Enable) || ((STATE) == DAC_OutputBuffer_Disable))
/**
  * @}
  */

/** @defgroup DAC_Channel_selection 
  * @{
  */

#define DAC_Channel_1           ((uint32_t)0x00000000)
#define DAC_Channel_2           ((uint32_t)0x00000010)
#define IS_DAC_CHANNEL(CHANNEL) (((CHANNEL) == DAC_Channel_1) || ((CHANNEL) == DAC_Channel_2))
/**
  * @}
  */

/** @defgroup DAC_data_alignement 
  * @{
  */

#define DAC_Align_12b_R     ((uint32_t)0x00000000)
#define DAC_Align_12b_L     ((uint32_t)0x00000004)
#define DAC_Align_8b_R      ((uint32_t)0x00000008)
#define IS_DAC_ALIGN(ALIGN) (((ALIGN) == DAC_Align_12b_R) || ((ALIGN) == DAC_Align_12b_L) || ((ALIGN) == DAC_Align_8b_R))
/**
  * @}
  */

/** @defgroup DAC_wave_generation 
  * @{
  */

#define DAC_Wave_Noise    ((uint32_t)0x00000040)
#define DAC_Wave_Triangle ((uint32_t)0x00000080)
#define IS_DAC_WAVE(WAVE) (((WAVE) == DAC_Wave_Noise) || ((WAVE) == DAC_Wave_Triangle))
/**
  * @}
  */

/** @defgroup DAC_data 
  * @{
  */

#define IS_DAC_DATA(DATA) ((DATA) <= 0xFFF0)
/**
  * @}
  */

/** @defgroup DAC_interrupts_definition 
  * @{
  */
#define DAC_IT_DMAUDR ((uint32_t)0x00002000)
#define IS_DAC_IT(IT) (((IT) == DAC_IT_DMAUDR))

/**
  * @}
  */

/** @defgroup DAC_flags_definition 
  * @{
  */

#define DAC_FLAG_DMAUDR   ((uint32_t)0x00002000)
#define IS_DAC_FLAG(FLAG) (((FLAG) == DAC_FLAG_DMAUDR))

/**
  * @}
  */

/**
  * @}
  */

/* Exported macro ------------------------------------------------------------*/
/* Exported functions --------------------------------------------------------*/

/*  Function used to set the DAC configuration to the default reset state *****/
void DAC_DeInit(void);

/*  DAC channels configuration: trigger, output buffer, data format functions */
void     DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef *DAC_InitStruct);
void     DAC_StructInit(DAC_InitTypeDef *DAC_InitStruct);
void     DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState);
void     DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState);
void     DAC_DualSoftwareTriggerCmd(FunctionalState NewState);
void     DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState);
void     DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data);
void     DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data);
void     DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1);
uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel);

/* DMA management functions ***************************************************/
void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState);

/* Interrupts and flags management functions **********************************/
void       DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState);
FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG);
void       DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG);
ITStatus   DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT);
void       DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT);

#ifdef __cplusplus
}
#endif

#endif /*__STM32F4xx_DAC_H */

/**
  * @}
  */

/**
  * @}
  */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
